V7 UPS2URM3000DC-NC-1N User Manual page 17

Symptom
No indicators or alarms though
mains power is normal.
The icon and the warning
code flash on LCD display
and alarm is sounding every 2
seconds.
The icons of and
the warning code
LCD display. Alarm is sounding
every 2 seconds.
The icons of and
the warning code
LCD display. Alarm is sounding
every 2 seconds.
Fault code 27 is displayed on the
LCD and the alarm is continuously
sounding.
Fault code 28 is displayed on the
LCD and the alarm is continuously
sounding.
The icons and
warning code flash on LCD
display. Alarm is sounding every
second.
Fault code 49 is displayed on the
LCD and the alarm is continuously
sounding.
Fault code 43 and the icon
displayed on the LCD and the
alarm is continuously sounding.
Fault code 14 is displayed on the
LCD and alarm is continuously
sounding.
Possible cause
The AC input power is not
connected
The AC input is connected
to the UPS output.
EPO function is activated.
Line and neutral
and
,
conductors of UPS input
flash on
are reversed.
The internal battery is
and
incorrectly connected.
flash on
Battery voltage is too high
or there is a charger fault.
Battery voltage is too low
or there is a charger fault.
UPS is overloaded
and the
UPS is overloaded. Devices
connected to the UPS are
fed directly by the
electrical network via
Bypass.
After repeat overloads, the
UPS is locked in the Bypass
mode. Connected devices
are fed directly by mains.
UPS is over input current.
The UPS shuts down
is
automatically because of
an overload of the UPS
output.
The UPS shuts down
automatically because of a
short circuit on the UPS
output.
16
Remedy
Check if input power cord
firmly connected to the
mains.
Plug AC input power cord to
AC input correctly.
Set the circuit in closed
position to disable EPO
function.
Rotate mains power socket
by 180° and then connect
to UPS system.
Confirm batteries are
properly connected
Contact your reseller or
techsupport@v7-world.com
Contact your reseller or
techsupport@v7-world.com
Remove excess loads from
the UPS.
Remove excess loads from
the UPS.
First, remove excess loads
from UPS. Then shut down
the UPS and restart it.
Remove excess loads from
UPS.
Remove excess loads from
UPS and restart it.
Check output wiring and if
connected devices have
short circuited